Albert Barnes Commentary John 7:47

"The Pharisees therefore answered them, Are ye also led astray?" — John 7:47 (ASV)

Are you also deceived? They regarded the claims of Jesus as, of course, an imposture. They did not examine, but were, like thousands, determined to believe that He was a deceiver. Therefore, they did not ask them whether they were convinced, or had seen evidence that He was the Messiah; but, with mingled contempt, envy, and anger, they asked if they were also deluded.

Thus, many assume religion to be an imposture. When someone becomes a Christian, they immediately assume that person is deceived, that they are the victim of foolish credulity or superstition, and treat them with ridicule or scorn. Candour would require them to inquire whether such changes were not proof of the power and truth of the gospel, just as candour in the case of the rulers required them to inquire whether Jesus had not given them evidence that He was from God.